package com.lwt.monstermall.auth.controller;

import com.alibaba.fastjson.TypeReference;
import com.lwt.monstermall.auth.feign.MemberFeignService;
import com.lwt.monstermall.auth.feign.ThirdPartFeignService;
import com.lwt.monstermall.auth.vo.UserLoginVo;
import com.lwt.monstermall.auth.vo.UserRegisterVo;
import com.lwt.monstermall.common.constant.AuthServerConstant;
import com.lwt.monstermall.common.exception.BizCodeEnum;
import com.lwt.monstermall.common.utils.R;
import com.lwt.monstermall.common.vo.MemberRespVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * @program: monstermall
 * @author: 大怪
 * @create: 2022-02-24 19:53
 */
@Controller
public class LoginController {

    @Autowired
    ThirdPartFeignService thirdPartFeignService;

    @Autowired
    StringRedisTemplate redisTemplate;

    @Autowired
    MemberFeignService memberFeignService;



    @ResponseBody
    @GetMapping("/sms/sendCode")
    public R sendCode(@RequestParam("phone")String phone){

        //TODO 接口防刷


        String redisCode = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone);
        if (!StringUtils.isEmpty(redisCode)){
            long l = Long.parseLong(redisCode.split("_")[1]);
            if (System.currentTimeMillis()-l<60000){
                //60秒内不能再发
                return R.error(BizCodeEnum.SMS_CODE_EXCEPTION.getCode(),BizCodeEnum.SMS_CODE_EXCEPTION.getMsg());
            }
        }
        String code = UUID.randomUUID().toString().substring(0, 5);

        //2.验证码校验，redis
        //redis缓存验证码，防止同一个手机号再次发送验证码
        redisTemplate.opsForValue().set(AuthServerConstant.SMS_CODE_CACHE_PREFIX+phone,code+"_"+System.currentTimeMillis(),10, TimeUnit.MINUTES);
        thirdPartFeignService.sendCode(phone,code);
        return R.ok();
    }


    @PostMapping("/regist")
    public String regist(@Valid UserRegisterVo vo, BindingResult result, RedirectAttributes redirectAttributes){
        if (result.hasErrors()){
            Map<String, String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(fieldError -> {
                return fieldError.getField();
            }, fieldError -> {
                return fieldError.getDefaultMessage();
            }));
            System.out.println(result);
            //校验出错
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:http://auth.monstermall.com/reg.html";
        }

        //真正注册，调用远程服务进行注册
        String code = vo.getCode();
        String s = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if (StringUtils.isNotBlank(s)){
            if (code.equals(s.split("_")[0])){
                //删除验证码;令牌机制
                redisTemplate.delete(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
                //验证码校验通过,真正注册，调用远程服务注册
                R r = memberFeignService.regist(vo);
                if (r.getCode()==0){
                    //成功,转到登录页
                    return "redirect:http://auth.monstermall.com/login.html";
                }else{
                    Map<String,Object> map = new HashMap<>();
                    map.put("msg",r.get("msg"));
                    System.out.println(map);
                    redirectAttributes.addFlashAttribute("errors",map);
                    return "redirect:http://auth.monstermall.com/reg.html";
                }
            }else {
                Map<String,Object> map = new HashMap<>();
                map.put("code","验证码输入错误");
                redirectAttributes.addFlashAttribute("errors",map);
                //校验出错，转发到注册页
                return "redirect:http://auth.monstermall.com/reg.html";
            }
        }else{
            Map<String,Object> map = new HashMap<>();
            map.put("code","验证码输入错误");
            redirectAttributes.addFlashAttribute("errors",map);
            //校验出错，转发到注册页
            return "redirect:http://auth.monstermall.com/reg.html";
        }
    }

    @GetMapping("/login.html")
    public String loginPage(HttpSession session){
        Object attribute = session.getAttribute(AuthServerConstant.SESSION_LOGIN_KEY);
        if (attribute == null){
            //没登录
            return "login";
        }else {
            return "redirect:http://monstermall.com";
        }
    }


    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes, HttpSession session){
        //远程登录
        R login = memberFeignService.login(vo);
        if (login.getCode() == 0){
            //成功
            MemberRespVo data = login.getData("data", new TypeReference<MemberRespVo>() {
            });
            session.setAttribute(AuthServerConstant.SESSION_LOGIN_KEY,data);
            return "redirect:http://monstermall.com";
        }else {
            HashMap<String, String> errors = new HashMap<>();
            errors.put("msg",login.getData("msg",new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:http://auth.monstermall.com/login.html";
        }

    }
}
